#645758 color
The hex color #645758 is a gray.
In the RGB color model it is made of 39.2% red, 34.1% green and 34.5% blue (100, 87, 88).
Its hue angle is 355°, with 7% saturation and 37% lightness. For print, the CMYK equivalent is 0% cyan, 13% magenta, 12% yellow and 61% black.
The closest named color is Pinot Noir (#605258), a difference of 3.2 ΔE, a small difference.
White text is the more readable choice on this background (contrast 6.89:1).
#645758 color codes
| HEX | #645758 | |
|---|---|---|
| RGB | rgb(100, 87, 88) | |
| RGB percent | rgb(39.2%, 34.1%, 34.5%) | |
| HSL | hsl(355, 7%, 37%) | |
| HSV / HSB | hsv(355, 13%, 39%) | |
| CMYK | cmyk(0%, 13%, 12%, 61%) | |
| CIE LAB | lab(38.25, 5.49, 1.37) | |
| CIE LCH | lch(38.25, 5.66, 14.03) | |
| CIE XYZ | xyz(10.425, 10.231, 10.656) | |
| Decimal | 6575960 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #645758, based on their position on the color wheel.
Complementary
The color opposite on the color wheel (180°). Strongest contrast.
Analogous
Neighbors 30° either side. Calm, natural combinations.
Split complementary
The two colors next to the complement (150° and 210°).
Triadic
Three colors evenly spaced, 120° apart.
Tetradic (square)
Four colors 90° apart.
Shades, tints and tones
Shades (darker, mixed with black)
Tints (lighter, mixed with white)
Tones (mixed with gray)
Contrast and accessibility
| Text on #645758 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 3.05:1 | Fail | Fail | Pass |
| Sample text | 6.89:1 | Pass | Fail | Pass |
| #645758 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 6.89:1 | Pass | Fail | Pass |
| Sample text | 3.05:1 | Fail | Fail | Pass |
WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.
Color blindness simulation
How #645758 looks to people with the most common types of color vision deficiency.
#595958Protanopia
no red cones#5c5b58Deuteranopia
no green cones#675657Tritanopia
no blue cones#5a5a5aAchromatopsia
no color vision
CSS examples
.background { background-color: #645758; }
.text { color: #645758; }
.border { border: 2px solid #645758; }
.transparent { background-color: rgb(100 87 88 / 50%); }
.gradient { background: linear-gradient(to right, #645758, #645d57); }
Similar colors
#605258Pinot Noir#5e5755Smokescreen#60504bChocolate Pretzel#635d63Wonder Wine#5f5854Bark#675850Squirrel’s Cache#574a47Molasses#625c58Caveman
Closest common color name: Umber.
Questions
- What color is #645758?
- #645758 is a gray, closest to the named color Pinot Noir. It belongs to the gray family of colors.
- What is the RGB value of #645758?
- The RGB value is 100, 87, 88: 100 red, 87 green and 88 blue on a 0 to 255 scale.
- What is the complementary color of #645758?
- The complementary color is #576463, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #645758?
- White text. Black text has a contrast ratio of 3.05:1 and white text 6.89:1. WCAG asks for at least 4.5:1 for normal text.